package com.ran.reggie.controller;


import com.alibaba.druid.util.StringUtils;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.incrementer.IdentifierGenerator;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ran.reggie.common.R;
import com.ran.reggie.dto.DishDto;
import com.ran.reggie.entity.Category;
import com.ran.reggie.entity.Dish;
import com.ran.reggie.entity.DishFlavor;
import com.ran.reggie.service.impl.CategoryService;
import com.ran.reggie.service.impl.DishFlavorService;
import com.ran.reggie.service.impl.DishService;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;
    
    @Autowired
    private RedisTemplate<Object,Object> redisTemplate;
    /**
     * 禁用/启用		批量禁用/启用
     * @param status
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public R<String> updateStatus(@PathVariable Integer status,String ids){
    	String[] split = ids.split(",");
    	for (String str : split) {
    		DishDto byIdWithFlavor = dishService.getByIdWithFlavor(Long.parseLong(str));
    		byIdWithFlavor.setStatus(status);
    		dishService.updateWithFlavor(byIdWithFlavor);
		}
        return R.success("操作成功");
    }


    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());
        String key="dish_"+dishDto.getCategoryId()+"_1";
        dishService.saveWithFlavor(dishDto);
        redisTemplate.delete(key);
        return  R.success("新增菜品成功");
    }

    /**
     * 菜品信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        //构造分页构造器
        Page<Dish> pageInfo = new Page<>(page, pageSize);

        Page<DishDto> dishDtoPage = new Page<>();

        //构造条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();

        //添加过滤条件
        queryWrapper.like(!StringUtils.isEmpty(name), Dish::getName, name);

        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //进行分页查询
        dishService.page(pageInfo, queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");

        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list=records.stream().map((item)->{
            DishDto dishDto=new DishDto();

            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();
            //根据id查分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息和对应的口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id){

        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);

    }

    /**
     * 修改菜品
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());
        String key="dish_"+dishDto.getCategoryId()+"_"+dishDto.getStatus();
        dishService.updateWithFlavor(dishDto);
        redisTemplate.delete(key);
        return  R.success("修改菜品成功");
    }

    /**
     * 根据菜品条件查询菜品数据
     * @param dish
     * @return
     */
    /*
    @GetMapping("/list")
    public R<List<Dish>> list(Dish dish){

        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!= null,Dish::getCategoryId,dish.getCategoryId());
        //查询状态是起售的
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);
        return R.success(list);
    }
    */
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
    	List<DishDto> dishDtoList = null;
    	String key="dish_"+dish.getCategoryId()+"_"+dish.getStatus();
    	dishDtoList=(List<DishDto>)redisTemplate.opsForValue().get(key);
        
    	if(dishDtoList!=null)	return R.success(dishDtoList);
    	//构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!= null,Dish::getCategoryId,dish.getCategoryId());
        //查询状态是起售的
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        dishDtoList = list.stream().map((item)->{
            DishDto dishDto=new DishDto();

            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();
            //根据id查分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            //当前菜品的ID
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);
            //SQL:select *from dish_flavor where dish_id = ？
            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;
        }).collect(Collectors.toList());

        redisTemplate.opsForValue().set(key,dishDtoList,60,TimeUnit.MINUTES);
        return R.success(dishDtoList);
    }
}


















